Hydrometeorological Discussion
Issued by NWS Middle Atlantic RFC

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AGUS71 KRHA 301505

 1005 AM EST FRI JAN 30 2015

Periods of snow moved across parts of our Hydrologic Service
area over the past 24 hours mixed at times with sleet,
freezing rain and light rain.  Below is a list of some of
the highest observed precipitation totals (water equivalents)
from 8am Thurs through 8am Friday.

Precip   County          State    Location
0.45     Indiana           PA     Indiana 3SSW DCP
0.40     Indiana           PA     Indiana
0.39     Elk               PA     Wilcox
0.38     Cayuga            NY     Auburn COOP
0.36     Cambria           PA     Belmont 0.1NE
0.34     Clearfield        PA     DuBois 2S COOP
0.32     Clearfield        PA     Curwensville Dam-COE
0.31     Somerset          PA     Laurel Mountain
0.30     Sullivan          PA     Laporte
0.30     Somerset          PA     Somerset
0.30     Lycoming          PA     Unityville F/P
0.26     Wayne             PA     Equinunk 2WNW
0.26     Delaware          NY     Long Eddy 6.5NNE
0.25     Grant             WV     Bayard
0.25     Delaware          NY     Cannonsville Reservoir

An arctic cold front with some snow showers and flurries
across our far northern and eastern river basins will push
offshore this morning. Generally dry and very cold weather
will follow from friday afternoon through 12Z Sunday.

Another storm system will move into the Ohio river valley
Sunday afternoon.  The storm system will move into the Mid
Atlantic late Sunday night into Monday and bring more snow,
sleet, freezing rain and rain to our hydrologic service

Day-3 basin average QPF (water equivalents) from 12Z sunday
through 12Z Monday is expected to range from two tenths
/0.20/ to six twenths /0.60/ of an inch.  Little river and
stream response is expected.

Ice effects continue along rivers, larger tributaries, streams
and creeks, especially across New York, Pennsylvania and parts
of New Jersey which could lead to sharp rises.  The term "Ice
Effects" means that river ice accumulation in the vicinity of
the river gage is altering the channel cross-section which
producesd higher stages than would be expected without the
river ice.  Abrupt fluctuations of several feet are quite
common and should be expecte during extended cold spells.

All MARFC river and stream forecasts will be issued by 11am.


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